Lawn mower



FIG. 1 is a left side elevational view of a lawn mower showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front side elevational thereof;

FIG. 4 is a back side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a perspective view thereof.

Any elements shown in dotted and/or dashed lines are provided for illustrative purposes only and form no part of the design claimed. Any surface shading is used solely to show the character or contour of the surfaces represented. 

CLAIM What is claimed is the ornamental design for a lawn mower, as shown and described. 